Home / 108,986.20-163,583.70-56,433.40

Finding the Fourth Proportional to 108,986.20, 163,583.70 and 56,433.40

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Solution

The fourth proportional to 108,986.20, 163,583.70 and 56,433.40 is: 84,704.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,986.20 : 163,583.70 = 56,433.40 : x
  2. Step 2: Convert to fraction form
    108,986.20/163,583.70 = 56,433.40/x
  3. Step 3: Cross multiply
    108,986.20x = 163,583.70 × 56,433.40
  4. Step 4: Simplify right side
    108,986.20x = 9,231,584,375.58
  5. Step 5: Solve for x
    x = 9,231,584,375.58/108,986.20
  6. Step 6: Final answer
    x = 84,704.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.